Question

Fill in the blanks with the correct words.
1. The particles of the insoluble solid should be .................. (bigger/smaller) than the holes in the filtering device.
2. Chalk and sand are .................. (soluble/insoluble) in water.
3. The substance in which the solute dissolves is called a .................. (solution/solvent).
4. The quantity of a substance that can dissolve in .................. (hot/cold) water is much more as compared to .................. (hot/cold) water.
5. Sugar in the .................. (powdered/solid) form dissolves first.

Answer 1

1. The particles of the insoluble solid should be bigger than the holes in the filtering device.

(This is because the particles of the insoluble solid would remain in the filtering device if they are bigger than the holes of the filtering device, and the filtered substance will pass through the holes and get separated.)

2. Chalk and sand are insoluble in water.

(Chalk and sand are insoluble in water and can be separated by filtration.)

3. The substance in which the solute dissolves is called a solvent.

(A solute dissolves in a solvent to give a solution.)

4. The quantity of a substance that can dissolve in hot water is much more as compared to the quantity of the substance that can dissolve in cold water.

(Heating water increases the solubility of a solute in it.)

5. Sugar in the powdered form dissolves first.

(A powdered solute is more soluble than the solute in the crystal form.)